Version 2024

2024 ICD-10-CM Diagnosis Code T23.6

Corrosion of second degree of wrist and hand

ICD-10-CM Code:
T23.6
ICD-10 Code for:
Corrosion of second degree of wrist and hand
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Burns and corrosions of external body surface, specified by site
      (T20-T25)
      • Burn and corrosion of wrist and hand
        (T23)

T23.6 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of corrosion of second degree of wrist and hand. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Corrosion of second degree of wrist and hand

Non-specific codes like T23.6 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for corrosion of second degree of wrist and hand:

  • T23.60 for Corrosion of second degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.601 for Corrosion of second degree of right hand, unspecified site - NON-BILLABLE CODE

  • Use T23.601A for initial encounter - BILLABLE CODE

  • Use T23.601D for subsequent encounter - BILLABLE CODE

  • Use T23.601S for sequela - BILLABLE CODE

  • T23.602 for Corrosion of second degree of left hand, unspecified site - NON-BILLABLE CODE

  • Use T23.602A for initial encounter - BILLABLE CODE

  • Use T23.602D for subsequent encounter - BILLABLE CODE

  • Use T23.602S for sequela - BILLABLE CODE

  • T23.609 for Corrosion of second degree of unspecified hand, unspecified site - NON-BILLABLE CODE

  • Use T23.609A for initial encounter - BILLABLE CODE

  • Use T23.609D for subsequent encounter - BILLABLE CODE

  • Use T23.609S for sequela - BILLABLE CODE

  • T23.61 for Corrosion of second degree of thumb (nail) - NON-BILLABLE CODE

  • T23.611 for Corrosion of second degree of right thumb (nail) - NON-BILLABLE CODE

  • Use T23.611A for initial encounter - BILLABLE CODE

  • Use T23.611D for subsequent encounter - BILLABLE CODE

  • Use T23.611S for sequela - BILLABLE CODE

  • T23.612 for Corrosion of second degree of left thumb (nail) - NON-BILLABLE CODE

  • Use T23.612A for initial encounter - BILLABLE CODE

  • Use T23.612D for subsequent encounter - BILLABLE CODE

  • Use T23.612S for sequela - BILLABLE CODE

  • T23.619 for Corrosion of second degree of unspecified thumb (nail) - NON-BILLABLE CODE

  • Use T23.619A for initial encounter - BILLABLE CODE

  • Use T23.619D for subsequent encounter - BILLABLE CODE

  • Use T23.619S for sequela - BILLABLE CODE

  • T23.62 for Corrosion of second degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.621 for Corrosion of second degree of single right finger (nail) except thumb - NON-BILLABLE CODE

  • Use T23.621A for initial encounter - BILLABLE CODE

  • Use T23.621D for subsequent encounter - BILLABLE CODE

  • Use T23.621S for sequela - BILLABLE CODE

  • T23.622 for Corrosion of second degree of single left finger (nail) except thumb - NON-BILLABLE CODE

  • Use T23.622A for initial encounter - BILLABLE CODE

  • Use T23.622D for subsequent encounter - BILLABLE CODE

  • Use T23.622S for sequela - BILLABLE CODE

  • T23.629 for Corrosion of second degree of unspecified single finger (nail) except thumb - NON-BILLABLE CODE

  • Use T23.629A for initial encounter - BILLABLE CODE

  • Use T23.629D for subsequent encounter - BILLABLE CODE

  • Use T23.629S for sequela - BILLABLE CODE

  • T23.63 for Corrosion of second degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.631 for Corrosion of second degree of multiple right fingers (nail), not including thumb - NON-BILLABLE CODE

  • Use T23.631A for initial encounter - BILLABLE CODE

  • Use T23.631D for subsequent encounter - BILLABLE CODE

  • Use T23.631S for sequela - BILLABLE CODE

  • T23.632 for Corrosion of second degree of multiple left fingers (nail), not including thumb - NON-BILLABLE CODE

  • Use T23.632A for initial encounter - BILLABLE CODE

  • Use T23.632D for subsequent encounter - BILLABLE CODE

  • Use T23.632S for sequela - BILLABLE CODE

  • T23.639 for Corrosion of second degree of unspecified multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • Use T23.639A for initial encounter - BILLABLE CODE

  • Use T23.639D for subsequent encounter - BILLABLE CODE

  • Use T23.639S for sequela - BILLABLE CODE

  • T23.64 for Corrosion of second degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.641 for Corrosion of second degree of multiple right fingers (nail), including thumb - NON-BILLABLE CODE

  • Use T23.641A for initial encounter - BILLABLE CODE

  • Use T23.641D for subsequent encounter - BILLABLE CODE

  • Use T23.641S for sequela - BILLABLE CODE

  • T23.642 for Corrosion of second degree of multiple left fingers (nail), including thumb - NON-BILLABLE CODE

  • Use T23.642A for initial encounter - BILLABLE CODE

  • Use T23.642D for subsequent encounter - BILLABLE CODE

  • Use T23.642S for sequela - BILLABLE CODE

  • T23.649 for Corrosion of second degree of unspecified multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • Use T23.649A for initial encounter - BILLABLE CODE

  • Use T23.649D for subsequent encounter - BILLABLE CODE

  • Use T23.649S for sequela - BILLABLE CODE

  • T23.65 for Corrosion of second degree of palm - NON-BILLABLE CODE

  • T23.651 for Corrosion of second degree of right palm - NON-BILLABLE CODE

  • Use T23.651A for initial encounter - BILLABLE CODE

  • Use T23.651D for subsequent encounter - BILLABLE CODE

  • Use T23.651S for sequela - BILLABLE CODE

  • T23.652 for Corrosion of second degree of left palm - NON-BILLABLE CODE

  • Use T23.652A for initial encounter - BILLABLE CODE

  • Use T23.652D for subsequent encounter - BILLABLE CODE

  • Use T23.652S for sequela - BILLABLE CODE

  • T23.659 for Corrosion of second degree of unspecified palm - NON-BILLABLE CODE

  • Use T23.659A for initial encounter - BILLABLE CODE

  • Use T23.659D for subsequent encounter - BILLABLE CODE

  • Use T23.659S for sequela - BILLABLE CODE

  • T23.66 for Corrosion of second degree of back of hand - NON-BILLABLE CODE

  • T23.661 for Corrosion of second degree back of right hand - NON-BILLABLE CODE

  • Use T23.661A for initial encounter - BILLABLE CODE

  • Use T23.661D for subsequent encounter - BILLABLE CODE

  • Use T23.661S for sequela - BILLABLE CODE

  • T23.662 for Corrosion of second degree back of left hand - NON-BILLABLE CODE

  • Use T23.662A for initial encounter - BILLABLE CODE

  • Use T23.662D for subsequent encounter - BILLABLE CODE

  • Use T23.662S for sequela - BILLABLE CODE

  • T23.669 for Corrosion of second degree back of unspecified hand - NON-BILLABLE CODE

  • Use T23.669A for initial encounter - BILLABLE CODE

  • Use T23.669D for subsequent encounter - BILLABLE CODE

  • Use T23.669S for sequela - BILLABLE CODE

  • T23.67 for Corrosion of second degree of wrist - NON-BILLABLE CODE

  • T23.671 for Corrosion of second degree of right wrist - NON-BILLABLE CODE

  • Use T23.671A for initial encounter - BILLABLE CODE

  • Use T23.671D for subsequent encounter - BILLABLE CODE

  • Use T23.671S for sequela - BILLABLE CODE

  • T23.672 for Corrosion of second degree of left wrist - NON-BILLABLE CODE

  • Use T23.672A for initial encounter - BILLABLE CODE

  • Use T23.672D for subsequent encounter - BILLABLE CODE

  • Use T23.672S for sequela - BILLABLE CODE

  • T23.679 for Corrosion of second degree of unspecified wrist - NON-BILLABLE CODE

  • Use T23.679A for initial encounter - BILLABLE CODE

  • Use T23.679D for subsequent encounter - BILLABLE CODE

  • Use T23.679S for sequela - BILLABLE CODE

  • T23.69 for Corrosion of second degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.691 for Corrosion of second degree of multiple sites of right wrist and hand - NON-BILLABLE CODE

  • Use T23.691A for initial encounter - BILLABLE CODE

  • Use T23.691D for subsequent encounter - BILLABLE CODE

  • Use T23.691S for sequela - BILLABLE CODE

  • T23.692 for Corrosion of second degree of multiple sites of left wrist and hand - NON-BILLABLE CODE

  • Use T23.692A for initial encounter - BILLABLE CODE

  • Use T23.692D for subsequent encounter - BILLABLE CODE

  • Use T23.692S for sequela - BILLABLE CODE

  • T23.699 for Corrosion of second degree of multiple sites of unspecified wrist and hand - NON-BILLABLE CODE

  • Use T23.699A for initial encounter - BILLABLE CODE

  • Use T23.699D for subsequent encounter - BILLABLE CODE

  • Use T23.699S for sequela - BILLABLE CODE

Coding Guidelines

The ICD-10-CM makes a distinction between burns and corrosions. The burn codes are for thermal burns, except sunburns, that come from a heat source, such as a fire or hot appliance. The burn codes are also for burns resulting from electricity and radiation. Corrosions are burns due to chemicals. The guidelines are the same for burns and corrosions.

Sequence first the code that reflects the highest degree of burn when more than one burn is present.

  • When the reason for the admission or encounter is for treatment of external multiple burns, sequence first the code that reflects the burn of the highest degree.
  • When a patient has both internal and external burns, the circumstances of admission govern the selection of the principal diagnosis or first-listed diagnosis.
  • When a patient is admitted for burn injuries and other related conditions such as smoke inhalation and/or respiratory failure, the circumstances of admission govern the selection of the principal or first-listed diagnosis.

Current burns (T20-T25) are classified by depth, extent and by agent (X code). Burns are classified by depth as first degree (erythema), second degree (blistering), and third degree (full-thickness involvement).

Classify burns of the same local site (three-character category level, T20-T28) but of different degrees to the subcategory identifying the highest degree recorded in the diagnosis.

The appropriate 7th character is to be added to each code from block Burn and corrosion of wrist and hand (T23). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient Education


Burns

A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires and flammable liquids and gases are the most common causes of burns. Another kind is an inhalation injury, caused by breathing smoke.

There are three types of burns:

  • First-degree burns damage only the outer layer of skin
  • Second-degree burns damage the outer layer and the layer underneath
  • Third-degree burns damage or destroy the deepest layer of skin and tissues underneath

Burns can cause swelling, blistering, scarring and, in serious cases, shock, and even death. They also can lead to infections because they damage your skin's protective barrier. Treatment for burns depends on the cause of the burn, how deep it is, and how much of the body it covers. Antibiotic creams can prevent or treat infections. For more serious burns, treatment may be needed to clean the wound, replace the skin, and make sure the patient has enough fluids and nutrition.

NIH: National Institute of General Medical Sciences


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.